Thauera sp. for efficient nitrate removal in continuous denitrifying moving bed biofilm reactor

Bioprocess Biosyst Eng. 2024 Mar 5. doi: 10.1007/s00449-024-02977-7. Online ahead of print.ABSTRACTThauera is the most widely found dominant denitrifying genus in wastewater. In earlier study, MBBR augmented with a specially developed denitrifying five-membered bacterial consortium (DC5) where Thauera was found to be the most abundant and persistent genus. Therefore, to check the functional potential of Thauera in the removal of nitrate-containing wastewater in the present study Thauera sp.V14 one of the member of the consortium DC5 was used as the model organism. Thauera sp.V14 exhibited strong hydrophobicity, auto-aggregation ability, biofilm formation and denitrification ability, which indicated its robust adaptability short colonization and nitrate removal efficiency. Continuous reactor studies with Thauera sp.V14 in 10 L dMBBR showed 91% of denitrification efficiency with an initial nitrate concentration of 620 mg L-1 within 3 h of HRT. Thus, it revealed that Thauera can be employed as an effective microorganism for nitrate removal from wastewater based on its performance in the present studies.PMID:38441647 | DOI:10.1007/s00449-024-02977-7
Source: Bioprocess and Biosystems Engineering - Category: Biomedical Engineering Authors: Source Type: research